Series Information: Helliconia

The great drama of life on Helliconia is shaped by its cosmic limitations. It revolves with three other planets round the star Batalix, the whole group revolving in turn in a giant ellipse round Freyr, fifteen times the size of our sun and 60,000 times as luminous...

In the fierce contrasts of climate, whole seasons last for centuries and civilisations rise and fall with each three-millennia orbit of Freyr.